GB2271905B - Sampling rate conversion using polyphase filters with interpolation - Google Patents

Sampling rate conversion using polyphase filters with interpolation

Info

Publication number
GB2271905B
GB2271905B GB9320154A GB9320154A GB2271905B GB 2271905 B GB2271905 B GB 2271905B GB 9320154 A GB9320154 A GB 9320154A GB 9320154 A GB9320154 A GB 9320154A GB 2271905 B GB2271905 B GB 2271905B
Authority
GB
United Kingdom
Prior art keywords
interpolation
sampling rate
rate conversion
polyphase filters
polyphase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9320154A
Other versions
GB9320154D0 (en
GB2271905A (en
Inventor
Ajay K Luthra
Ganesh Rajan
Ronald Alspaugh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grass Valley Group Inc
Original Assignee
Grass Valley Group Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grass Valley Group Inc filed Critical Grass Valley Group Inc
Publication of GB9320154D0 publication Critical patent/GB9320154D0/en
Publication of GB2271905A publication Critical patent/GB2271905A/en
Application granted granted Critical
Publication of GB2271905B publication Critical patent/GB2271905B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/0685—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being rational
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0273—Polyphase filters
    • H03H17/0275—Polyphase filters comprising non-recursive filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0102—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving the resampling of the incoming video signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H2017/0247—Parallel structures using a slower clock

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Television Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
GB9320154A 1992-10-23 1993-09-30 Sampling rate conversion using polyphase filters with interpolation Expired - Fee Related GB2271905B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/965,813 US5274372A (en) 1992-10-23 1992-10-23 Sampling rate conversion using polyphase filters with interpolation

Publications (3)

Publication Number Publication Date
GB9320154D0 GB9320154D0 (en) 1993-11-17
GB2271905A GB2271905A (en) 1994-04-27
GB2271905B true GB2271905B (en) 1996-05-15

Family

ID=25510526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9320154A Expired - Fee Related GB2271905B (en) 1992-10-23 1993-09-30 Sampling rate conversion using polyphase filters with interpolation

Country Status (4)

Country Link
US (1) US5274372A (en)
JP (1) JPH06204797A (en)
DE (1) DE4336331A1 (en)
GB (1) GB2271905B (en)

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FR2722051B1 (en) * 1994-07-01 1996-08-02 Thomson Consumer Electronics METHOD AND DEVICE FOR ASYNCHRONOUS DATA ON A DIGITAL SIGNAL
US5594675A (en) * 1994-07-14 1997-01-14 Industrial Technology Research Institute Reduced signal processing requirement sample and hold linear phase interpolative fir filter
US5613084A (en) * 1994-10-04 1997-03-18 Panasonic Technologies, Inc. Interpolation filter selection circuit for sample rate conversion using phase quantization
US5610942A (en) * 1995-03-07 1997-03-11 Chen; Keping Digital signal transcoder and method of transcoding a digital signal
US5528301A (en) * 1995-03-31 1996-06-18 Panasonic Technologies, Inc. Universal video format sample size converter
US5606319A (en) * 1995-08-07 1997-02-25 Motorola, Inc. Method and apparatus for interpolation and noise shaping in a signal converter
US5587742A (en) * 1995-08-25 1996-12-24 Panasonic Technologies, Inc. Flexible parallel processing architecture for video resizing
KR0170301B1 (en) * 1995-10-30 1999-04-15 김광호 Integrated phase filter and timing error compensation device thereof and method therefor
US5991463A (en) 1995-11-08 1999-11-23 Genesis Microchip Inc. Source data interpolation method and apparatus
GB2307129B (en) * 1995-11-09 2000-01-26 Sony Uk Ltd Video down-conversion
US5777679A (en) * 1996-03-15 1998-07-07 International Business Machines Corporation Video decoder including polyphase fir horizontal filter
US6067071A (en) * 1996-06-27 2000-05-23 Cirrus Logic, Inc. Method and apparatus for expanding graphics images for LCD panels
US6542150B1 (en) * 1996-06-28 2003-04-01 Cirrus Logic, Inc. Method and apparatus for asynchronous display of graphic images
US6618443B1 (en) 1997-03-12 2003-09-09 Matsushita Electric Industrial Co., Ltd. Upsampling filter for a down conversion system
US6788347B1 (en) * 1997-03-12 2004-09-07 Matsushita Electric Industrial Co., Ltd. HDTV downconversion system
WO1998041011A1 (en) 1997-03-12 1998-09-17 Matsushita Electric Industrial Co., Ltd. Hdtv downconversion system
US6175592B1 (en) 1997-03-12 2001-01-16 Matsushita Electric Industrial Co., Ltd. Frequency domain filtering for down conversion of a DCT encoded picture
JP3917190B2 (en) * 1997-04-16 2007-05-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Synchronous sigma-delta modulator
US6087968A (en) * 1997-04-16 2000-07-11 U.S. Philips Corporation Analog to digital converter comprising an asynchronous sigma delta modulator and decimating digital filter
US6281873B1 (en) * 1997-10-09 2001-08-28 Fairchild Semiconductor Corporation Video line rate vertical scaler
US5973740A (en) * 1997-10-27 1999-10-26 International Business Machines Corporation Multi-format reduced memory video decoder with adjustable polyphase expansion filter
FR2780830B1 (en) * 1998-07-06 2000-09-22 St Microelectronics Sa PARALLEL SURCHANTILLON DECIMATOR FILTER
US6487249B2 (en) 1998-10-09 2002-11-26 Matsushita Electric Industrial Co., Ltd. Efficient down conversion system for 2:1 decimation
US6057789A (en) * 1998-10-29 2000-05-02 Neomagic Corp. Re-synchronization of independently-clocked audio streams by dynamically switching among 3 ratios for sampling-rate-conversion
US6252919B1 (en) 1998-12-17 2001-06-26 Neomagic Corp. Re-synchronization of independently-clocked audio streams by fading-in with a fractional sample over multiple periods for sample-rate conversion
JP2002543651A (en) 1999-04-22 2002-12-17 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Sample rate converter
US6590510B2 (en) 2000-06-16 2003-07-08 Lionel Jacques Woog Sample rate converter
GB0018490D0 (en) * 2000-07-27 2000-09-13 Element 14 Inc Digital/analogue communication system
DE10045547A1 (en) * 2000-09-14 2002-04-04 Infineon Technologies Ag Method for the system-independent digital generation of mobile communication transmission signals of various mobile radio standards
KR100421001B1 (en) * 2001-02-20 2004-03-03 삼성전자주식회사 Sampling rate conversion apparatus and method thereof
DE10112275B4 (en) * 2001-03-14 2005-01-20 Rohde & Schwarz Gmbh & Co. Kg interpolator
DE60140805D1 (en) * 2001-10-10 2010-01-28 Texas Instruments Inc Device and method for image scaling
DE10205305A1 (en) * 2002-02-08 2003-08-28 Infineon Technologies Ag Clock control of transmission signal processing devices in mobile radio terminals
US7245237B2 (en) * 2002-09-17 2007-07-17 Intel Corporation Digital sampling rate conversion using a poly-phase filter and a polynomial interpolator
US6876319B2 (en) * 2002-09-20 2005-04-05 Intersil Americas Inc. Integrated modulator and demodulator configuration
WO2004095838A1 (en) * 2003-04-24 2004-11-04 Koninklijke Philips Electronics N.V. Combined sampling rate conversion and gain-controlled filtering
JP2005217837A (en) * 2004-01-30 2005-08-11 Sony Corp Sampling rate conversion apparatus and method thereof, and audio apparatus
US8417066B2 (en) * 2004-03-04 2013-04-09 Broadcom Corporation Method and system for polyphase filtering by combining IIR and FIR filters and its applications in video scaling
US7406134B1 (en) 2004-03-04 2008-07-29 Altera Corporation Very high data rate up-conversion in FPGAs
US7196642B2 (en) * 2005-08-24 2007-03-27 Seiko Epson Corporation Circuitry and method for sampling audio data
US7920078B2 (en) * 2009-06-19 2011-04-05 Conexant Systems, Inc. Systems and methods for variable rate conversion
US8619840B2 (en) * 2010-02-26 2013-12-31 Qualcomm Incorporated Apparatus and methods for sampling rate conversion for wireless transceivers
US8477056B2 (en) * 2010-06-01 2013-07-02 Infinera Corporation Method, system, and apparatus for interpolating an output of an analog-to-digital converter
US8768995B2 (en) * 2010-08-31 2014-07-01 Telefonaktiebolaget L.M. Ericsson (Publ) Multi-branch rate change filter

Citations (2)

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Publication number Priority date Publication date Assignee Title
GB2240684A (en) * 1990-02-06 1991-08-07 Sony Corp Cascaded digital signal interpolator
GB2255469A (en) * 1991-04-12 1992-11-04 Abekas Video Systems Digital sample rate converter.

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JP2731151B2 (en) * 1987-09-18 1998-03-25 株式会社東芝 Phase information detection circuit
JPS6477327A (en) * 1987-09-18 1989-03-23 Toshiba Corp Sample rate converting circuit
JPH01319319A (en) * 1988-06-21 1989-12-25 Nec Corp Variable frequency band pass filter
JPH0716146B2 (en) * 1988-11-14 1995-02-22 シャープ株式会社 Interfield interpolation filter
JPH10294646A (en) * 1990-02-16 1998-11-04 Sony Corp Sampling rate conversion device
EP0444368B1 (en) * 1990-02-28 1997-12-29 Texas Instruments France Digital Filtering with SIMD-processor
JPH03261212A (en) * 1990-03-12 1991-11-21 Matsushita Electric Ind Co Ltd Digital filter circuit
JPH03261213A (en) * 1990-03-12 1991-11-21 Matsushita Electric Ind Co Ltd Digital filter circuit
JPH0490211A (en) * 1990-08-02 1992-03-24 Yamaha Corp Two-dimensional interpolation filter circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240684A (en) * 1990-02-06 1991-08-07 Sony Corp Cascaded digital signal interpolator
GB2255469A (en) * 1991-04-12 1992-11-04 Abekas Video Systems Digital sample rate converter.

Also Published As

Publication number Publication date
GB9320154D0 (en) 1993-11-17
GB2271905A (en) 1994-04-27
DE4336331A1 (en) 1994-04-28
US5274372A (en) 1993-12-28
JPH06204797A (en) 1994-07-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010930